Profiling Report

Dataset statistics

Number of variables	20
Number of observations	121387
Missing cells	2
Missing cells (%)	< 0.1%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	18.5 MiB
Average record size in memory	160.0 B

Variable types

Text	2
Categorical	2
Numeric	16

Alerts

`Deviation of star ratings` is highly overall correlated with `Rating` and 3 other fields	High correlation
`FOG Index` is highly overall correlated with `Flesch Reading Ease`	High correlation
`Flesch Reading Ease` is highly overall correlated with `FOG Index`	High correlation
`Rating` is highly overall correlated with `Deviation of star ratings`	High correlation
`avg_rating` is highly overall correlated with `Deviation of star ratings` and 3 other fields	High correlation
`breadth` is highly overall correlated with `depth`	High correlation
`depth` is highly overall correlated with `breadth`	High correlation
`num_of_enrolled` is highly overall correlated with `avg_rating` and 3 other fields	High correlation
`num_of_ratings` is highly overall correlated with `Deviation of star ratings` and 4 other fields	High correlation
`num_of_reviews` is highly overall correlated with `Deviation of star ratings` and 4 other fields	High correlation
`num_of_top_instructor_courses` is highly overall correlated with `num_of_top_instructor_leaners`	High correlation
`num_of_top_instructor_leaners` is highly overall correlated with `num_of_enrolled` and 3 other fields	High correlation
`sentiment_score_discrete` is highly overall correlated with `valence`	High correlation
`valence` is highly overall correlated with `sentiment_score_discrete`	High correlation
`Rating` is highly imbalanced (60.8%)	Imbalance
`helpfulness` is highly skewed (γ1 = 42.77455275)	Skewed
`helpfulness` has 116004 (95.6%) zeros	Zeros

Reproduction

Analysis started	2025-02-06 04:42:00.377315
Analysis finished	2025-02-06 04:42:15.254865
Duration	14.88 seconds
Software version	ydata-profiling vv4.12.2
Download configuration	config.json

course_name
Text

Distinct	205
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Memory size	948.5 KiB

Length

Max length	79
Median length	58
Mean length	21.21714
Min length	2

Characters and Unicode

Total characters	2575485
Distinct characters	30
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	2 ?
Unique (%)	< 0.1%

Sample

1st row	foundations-of-cybersecurity
2nd row	foundations-of-cybersecurity
3rd row	foundations-of-cybersecurity
4th row	foundations-of-cybersecurity
5th row	foundations-of-cybersecurity

Value	Count	Frequency (%)
python-data	9610	7.9%
python	9486	7.8%
foundations-user-experience-design	8989	7.4%
python-network-data	5735	4.7%
html	4905	4.0%
foundations-of-cybersecurity	4621	3.8%
matlab	3338	2.7%
introduction-tensorflow	3303	2.7%
html-css-javascript-for-web-developers	3235	2.7%
python-basics	2932	2.4%
Other values (195)	65233	53.7%

Most occurring characters

Value	Count	Frequency (%)
-	236320	9.2%
e	218338	8.5%
t	217923	8.5%
o	204584	7.9%
n	197417	7.7%
a	172715	6.7%
r	162801	6.3%
i	160660	6.2%
s	142672	5.5%
d	104618	4.1%
Other values (20)	757437	29.4%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	2575485	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
-	236320	9.2%
e	218338	8.5%
t	217923	8.5%
o	204584	7.9%
n	197417	7.7%
a	172715	6.7%
r	162801	6.3%
i	160660	6.2%
s	142672	5.5%
d	104618	4.1%
Other values (20)	757437	29.4%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	2575485	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
-	236320	9.2%
e	218338	8.5%
t	217923	8.5%
o	204584	7.9%
n	197417	7.7%
a	172715	6.7%
r	162801	6.3%
i	160660	6.2%
s	142672	5.5%
d	104618	4.1%
Other values (20)	757437	29.4%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	2575485	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
-	236320	9.2%
e	218338	8.5%
t	217923	8.5%
o	204584	7.9%
n	197417	7.7%
a	172715	6.7%
r	162801	6.3%
i	160660	6.2%
s	142672	5.5%
d	104618	4.1%
Other values (20)	757437	29.4%

Rating
Categorical

High correlation Imbalance

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	948.5 KiB

5	99607
4	15142
3	4152
2	1371
1	1115

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	121387
Distinct characters	5
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	5
2nd row	5
3rd row	5
4th row	5
5th row	5

Common Values

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

Most occurring characters

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
5	99607	82.1%
4	15142	12.5%
3	4152	3.4%
2	1371	1.1%
1	1115	0.9%

avg_rating
Real number (ℝ)

High correlation

Distinct	12
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	4.7471805

Minimum	3.8
Maximum	4.9
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	3.8
5-th percentile	4.6
Q1	4.7
median	4.8
Q3	4.8
95-th percentile	4.9
Maximum	4.9
Range	1.1
Interquartile range (IQR)	0.1

Descriptive statistics

Standard deviation	0.10425995
Coefficient of variation (CV)	0.0219625
Kurtosis	4.2441509
Mean	4.7471805
Median Absolute Deviation (MAD)	0.1
Skewness	-1.3557117
Sum	576246
Variance	0.010870138
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=12)

Value	Count	Frequency (%)
4.8	58959	48.6%
4.7	30831	25.4%
4.6	14624	12.0%
4.9	12412	10.2%
4.5	2829	2.3%
4.4	1087	0.9%
4.3	498	0.4%
4.1	56	< 0.1%
4	35	< 0.1%
3.9	28	< 0.1%
Other values (2)	28	< 0.1%

Value	Count	Frequency (%)
3.8	8	< 0.1%
3.9	28	< 0.1%
4	35	< 0.1%
4.1	56	< 0.1%
4.2	20	< 0.1%
4.3	498	0.4%
4.4	1087	0.9%
4.5	2829	2.3%
4.6	14624	12.0%
4.7	30831	25.4%

Value	Count	Frequency (%)
4.9	12412	10.2%
4.8	58959	48.6%
4.7	30831	25.4%
4.6	14624	12.0%
4.5	2829	2.3%
4.4	1087	0.9%
4.3	498	0.4%
4.2	20	< 0.1%
4.1	56	< 0.1%
4	35	< 0.1%

num_of_ratings
Real number (ℝ)

High correlation

Distinct	193
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	40131.903

Minimum	13
Maximum	229752
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	13
5-th percentile	1247
Q1	3833
median	14713
Q3	44178
95-th percentile	229752
Maximum	229752
Range	229739
Interquartile range (IQR)	40345

Descriptive statistics

Standard deviation	61828.438
Coefficient of variation (CV)	1.5406306
Kurtosis	4.0275906
Mean	40131.903
Median Absolute Deviation (MAD)	12158
Skewness	2.2202018
Sum	4.8714913 × 10⁹
Variance	3.8227558 × 10⁹
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
96077	9610	7.9%
229752	9486	7.8%
69498	8989	7.4%
44178	5735	4.7%
27564	4905	4.0%
27905	4621	3.8%
17700	3338	2.7%
19521	3303	2.7%
16672	3235	2.7%
17773	2932	2.4%
Other values (183)	65233	53.7%

Value	Count	Frequency (%)
13	1	< 0.1%
19	6	< 0.1%
24	23	< 0.1%
28	2	< 0.1%
30	5	< 0.1%
39	16	< 0.1%
41	8	< 0.1%
42	10	< 0.1%
52	11	< 0.1%
55	11	< 0.1%

Value	Count	Frequency (%)
229752	9486	7.8%
96077	9610	7.9%
69498	8989	7.4%
44178	5735	4.7%
27905	4621	3.8%
27564	4905	4.0%
21320	2087	1.7%
19521	3303	2.7%
17773	2932	2.4%
17700	3338	2.7%

helpfulness
Real number (ℝ)

Skewed Zeros

Distinct	76
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.17410431

Minimum	0
Maximum	239
Zeros	116004
Zeros (%)	95.6%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	0
Maximum	239
Range	239
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	2.1063695
Coefficient of variation (CV)	12.098319
Kurtosis	3074.0323
Mean	0.17410431
Median Absolute Deviation (MAD)	0
Skewness	42.774553
Sum	21134
Variance	4.4367924
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	116004	95.6%
1	2984	2.5%
2	756	0.6%
3	367	0.3%
4	268	0.2%
5	173	0.1%
6	130	0.1%
7	90	0.1%
8	86	0.1%
9	78	0.1%
Other values (66)	451	0.4%

Value	Count	Frequency (%)
0	116004	95.6%
1	2984	2.5%
2	756	0.6%
3	367	0.3%
4	268	0.2%
5	173	0.1%
6	130	0.1%
7	90	0.1%
8	86	0.1%
9	78	0.1%

Value	Count	Frequency (%)
239	1	< 0.1%
202	1	< 0.1%
144	1	< 0.1%
138	1	< 0.1%
136	1	< 0.1%
118	1	< 0.1%
114	1	< 0.1%
111	1	< 0.1%
99	1	< 0.1%
87	1	< 0.1%

Review_Text
Text

Distinct	121351
Distinct (%)	> 99.9%
Missing	1
Missing (%)	< 0.1%
Memory size	948.5 KiB

Length

Max length	5655
Median length	1971
Mean length	128.24104
Min length	1

Characters and Unicode

Total characters	15566667
Distinct characters	75
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	121323 ?
Unique (%)	99.9%

Sample

1st row	The course is well paced and they get you comfortable with the topics even though we do not have any sort of prior exposure in this field. It is very good for the beginners who are new to this field
2nd row	Information was well organized, easy to learn, and study. with frequent note writing, and some breaks . You can learn a good brief summary of what's to come, and what to research more in the future.
3rd row	For a foundation course, this one was easy to understand, it explained all basic concepts in a fluid way and built up the base for the upcoming courses. I'm eager to move on to the other courses now.
4th row	I think this is a great start for anyone who is starting from absolute zero. I think that since I've been toying with the idea of getting into Cybersecurity for 2 years now, it was a great refresher!
5th row	Surprised by the quality of this course. repeating items so you learn by seeing definitions and concepts over and over again while using great analogy to make difficult concept understandable.

Value	Count	Frequency (%)
the	123601	4.7%
and	90715	3.4%
to	90115	3.4%
course	88853	3.3%
a	63565	2.4%
i	62474	2.4%
of	49581	1.9%
this	47019	1.8%
is	44077	1.7%
for	41239	1.6%
Other values (46043)	1951407	73.6%

Most occurring characters

Value	Count	Frequency (%)
	2544882	16.3%
e	1542155	9.9%
t	1052378	6.8%
o	1002649	6.4%
a	915063	5.9%
n	876162	5.6%
r	829709	5.3%
s	820077	5.3%
i	799167	5.1%
l	534871	3.4%
Other values (65)	4649554	29.9%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	15566667	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
	2544882	16.3%
e	1542155	9.9%
t	1052378	6.8%
o	1002649	6.4%
a	915063	5.9%
n	876162	5.6%
r	829709	5.3%
s	820077	5.3%
i	799167	5.1%
l	534871	3.4%
Other values (65)	4649554	29.9%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	15566667	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
	2544882	16.3%
e	1542155	9.9%
t	1052378	6.8%
o	1002649	6.4%
a	915063	5.9%
n	876162	5.6%
r	829709	5.3%
s	820077	5.3%
i	799167	5.1%
l	534871	3.4%
Other values (65)	4649554	29.9%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	15566667	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
	2544882	16.3%
e	1542155	9.9%
t	1052378	6.8%
o	1002649	6.4%
a	915063	5.9%
n	876162	5.6%
r	829709	5.3%
s	820077	5.3%
i	799167	5.1%
l	534871	3.4%
Other values (65)	4649554	29.9%

num_of_reviews
Real number (ℝ)

High correlation

Distinct	178
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	4175.094

Minimum	1
Maximum	10000
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	1
5-th percentile	216
Q1	860
median	2718
Q3	7113
95-th percentile	10000
Maximum	10000
Range	9999
Interquartile range (IQR)	6253

Descriptive statistics

Standard deviation	3713.9884
Coefficient of variation (CV)	0.88955803
Kurtosis	-1.248118
Mean	4175.094
Median Absolute Deviation (MAD)	2185
Skewness	0.58369948
Sum	5.0680213 × 10⁸
Variance	13793709
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
10000	28085	23.1%
7113	5735	4.7%
6623	4905	4.0%
5510	4621	3.8%
4032	3338	2.7%
3809	3303	2.7%
4131	3235	2.7%
3784	2932	2.4%
2854	2220	1.8%
2718	2159	1.8%
Other values (168)	60854	50.1%

Value	Count	Frequency (%)
1	1	< 0.1%
2	1	< 0.1%
5	5	< 0.1%
6	6	< 0.1%
7	4	< 0.1%
8	31	< 0.1%
9	21	< 0.1%
10	23	< 0.1%
11	22	< 0.1%
12	7	< 0.1%

Value	Count	Frequency (%)
10000	28085	23.1%
7113	5735	4.7%
6623	4905	4.0%
5510	4621	3.8%
4131	3235	2.7%
4032	3338	2.7%
3809	3303	2.7%
3784	2932	2.4%
2854	2220	1.8%
2779	1850	1.5%

num_of_enrolled
Real number (ℝ)

High correlation

Distinct	205
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	727639.14

Minimum	1507
Maximum	3205753
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	1507
5-th percentile	67311
Q1	198585
median	459997
Q3	1076350
95-th percentile	3205753
Maximum	3205753
Range	3204246
Interquartile range (IQR)	877765

Descriptive statistics

Standard deviation	820419.7
Coefficient of variation (CV)	1.127509
Kurtosis	3.6395284
Mean	727639.14
Median Absolute Deviation (MAD)	299287
Skewness	2.0538046
Sum	8.8325933 × 10¹⁰
Variance	6.7308848 × 10¹¹
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1076350	9610	7.9%
3205753	9486	7.8%
1361423	8989	7.4%
682235	5735	4.7%
574559	4905	4.0%
988223	4621	3.8%
497579	3338	2.7%
385916	3303	2.7%
1171384	3235	2.7%
459997	2932	2.4%
Other values (195)	65233	53.7%

Value	Count	Frequency (%)
1507	2	< 0.1%
2165	11	< 0.1%
2233	6	< 0.1%
2240	10	< 0.1%
2429	4	< 0.1%
3736	8	< 0.1%
3802	1	< 0.1%
4033	9	< 0.1%
5198	7	< 0.1%
5932	8	< 0.1%

Value	Count	Frequency (%)
3205753	9486	7.8%
1361423	8989	7.4%
1171384	3235	2.7%
1076350	9610	7.9%
988223	4621	3.8%
682235	5735	4.7%
582205	2159	1.8%
574559	4905	4.0%
540079	2075	1.7%
535924	1936	1.6%

num_of_top_instructor_courses
Real number (ℝ)

High correlation

Distinct	29
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	110.57201

Minimum	2
Maximum	1675
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	2
5-th percentile	4
Q1	9
median	60
Q3	129
95-th percentile	325
Maximum	1675
Range	1673
Interquartile range (IQR)	120

Descriptive statistics

Standard deviation	207.33114
Coefficient of variation (CV)	1.8750779
Kurtosis	35.751552
Mean	110.57201
Median Absolute Deviation (MAD)	51
Skewness	5.255979
Sum	13422005
Variance	42986.202
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=29)

Value	Count	Frequency (%)
60	34705	28.6%
325	22785	18.8%
9	8841	7.3%
4	7591	6.3%
129	6315	5.2%
5	5313	4.4%
18	5172	4.3%
2	4368	3.6%
12	3812	3.1%
8	3753	3.1%
Other values (19)	18732	15.4%

Value	Count	Frequency (%)
2	4368	3.6%
3	713	0.6%
4	7591	6.3%
5	5313	4.4%
6	1336	1.1%
7	2268	1.9%
8	3753	3.1%
9	8841	7.3%
10	48	< 0.1%
12	3812	3.1%

Value	Count	Frequency (%)
1675	1442	1.2%
325	22785	18.8%
196	65	0.1%
129	6315	5.2%
87	137	0.1%
66	16	< 0.1%
60	34705	28.6%
58	1741	1.4%
53	1142	0.9%
48	9	< 0.1%

num_of_top_instructor_leaners
Real number (ℝ)

High correlation

Distinct	83
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	3710246.1

Minimum	3945
Maximum	11153139
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	3945
5-th percentile	167950
Q1	517137
median	1245385
Q3	4384601
95-th percentile	11153139
Maximum	11153139
Range	11149194
Interquartile range (IQR)	3867464

Descriptive statistics

Standard deviation	3936264.2
Coefficient of variation (CV)	1.0609173
Kurtosis	-0.38959833
Mean	3710246.1
Median Absolute Deviation (MAD)	1175823
Skewness	1.0120044
Sum	4.5037564 × 10¹¹
Variance	1.5494176 × 10¹³
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
4384601	34705	28.6%
11153139	22785	18.8%
954353	6315	5.2%
1071441	4957	4.1%
517137	3538	2.9%
1245385	3536	2.9%
506004	3437	2.8%
528545	3374	2.8%
596976	3139	2.6%
426823	3060	2.5%
Other values (73)	32541	26.8%

Value	Count	Frequency (%)
3945	8	< 0.1%
6855	4	< 0.1%
7841	19	< 0.1%
8506	35	< 0.1%
8682	7	< 0.1%
8703	8	< 0.1%
18193	8	< 0.1%
19837	18	< 0.1%
21526	31	< 0.1%
29959	40	< 0.1%

Value	Count	Frequency (%)
11153139	22785	18.8%
4384601	34705	28.6%
3081791	1142	0.9%
2767486	1442	1.2%
1245385	3536	2.9%
1071441	4957	4.1%
1065753	65	0.1%
1014757	1741	1.4%
954353	6315	5.2%
892947	1	< 0.1%

text_length
Real number (ℝ)

Distinct	354
Distinct (%)	0.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	21.853683

Minimum	1
Maximum	1000
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	1
5-th percentile	3
Q1	7
median	14
Q3	27
95-th percentile	65
Maximum	1000
Range	999
Interquartile range (IQR)	20

Descriptive statistics

Standard deviation	26.602132
Coefficient of variation (CV)	1.2172837
Kurtosis	70.908089
Mean	21.853683
Median Absolute Deviation (MAD)	9
Skewness	5.501928
Sum	2652753
Variance	707.67342
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
5	6518	5.4%
4	5958	4.9%
6	5957	4.9%
7	5405	4.5%
8	5040	4.2%
9	4610	3.8%
3	4451	3.7%
10	4432	3.7%
11	4077	3.4%
2	3958	3.3%
Other values (344)	70981	58.5%

Value	Count	Frequency (%)
1	1619	1.3%
2	3958	3.3%
3	4451	3.7%
4	5958	4.9%
5	6518	5.4%
6	5957	4.9%
7	5405	4.5%
8	5040	4.2%
9	4610	3.8%
10	4432	3.7%

Value	Count	Frequency (%)
1000	1	< 0.1%
786	1	< 0.1%
748	1	< 0.1%
728	1	< 0.1%
627	1	< 0.1%
582	1	< 0.1%
544	1	< 0.1%
534	1	< 0.1%
520	1	< 0.1%
512	1	< 0.1%

time_lapsed
Real number (ℝ)

Distinct	3379
Distinct (%)	2.8%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1389.5706

Minimum	0
Maximum	3397
Zeros	18
Zeros (%)	< 0.1%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	0
5-th percentile	214
Q1	776
median	1484
Q3	1700
95-th percentile	2889
Maximum	3397
Range	3397
Interquartile range (IQR)	924

Descriptive statistics

Standard deviation	770.59645
Coefficient of variation (CV)	0.55455724
Kurtosis	-0.28076776
Mean	1389.5706
Median Absolute Deviation (MAD)	511
Skewness	0.37767789
Sum	1.6867581 × 10⁸
Variance	593818.88
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1644	237	0.2%
1663	235	0.2%
1645	234	0.2%
1657	229	0.2%
1659	227	0.2%
1601	226	0.2%
1643	225	0.2%
1664	224	0.2%
1650	224	0.2%
1656	224	0.2%
Other values (3369)	119102	98.1%

Value	Count	Frequency (%)
0	18	< 0.1%
1	18	< 0.1%
2	22	< 0.1%
3	17	< 0.1%
4	23	< 0.1%
5	24	< 0.1%
6	24	< 0.1%
7	26	< 0.1%
8	27	< 0.1%
9	29	< 0.1%

Value	Count	Frequency (%)
3397	1	< 0.1%
3395	2	< 0.1%
3392	1	< 0.1%
3391	1	< 0.1%
3390	1	< 0.1%
3384	1	< 0.1%
3383	1	< 0.1%
3382	1	< 0.1%
3379	2	< 0.1%
3376	1	< 0.1%

Deviation of star ratings
Real number (ℝ)

High correlation

Distinct	40
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.40515706

Minimum	0
Maximum	3.9
Zeros	7
Zeros (%)	< 0.1%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	0
5-th percentile	0.1
Q1	0.2
median	0.2
Q3	0.4
95-th percentile	1.6
Maximum	3.9
Range	3.9
Interquartile range (IQR)	0.2

Descriptive statistics

Standard deviation	0.50273265
Coefficient of variation (CV)	1.240834
Kurtosis	19.472279
Mean	0.40515706
Median Absolute Deviation (MAD)	0.1
Skewness	4.0787907
Sum	49180.8
Variance	0.25274012
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=40)

Value	Count	Frequency (%)
0.2	51554	42.5%
0.3	23699	19.5%
0.1	12158	10.0%
0.4	10062	8.3%
0.7	5506	4.5%
0.8	5450	4.5%
0.6	3716	3.1%
0.5	2352	1.9%
1.7	1275	1.1%
1.8	1273	1.0%
Other values (30)	4342	3.6%

Value	Count	Frequency (%)
0	7	< 0.1%
0.1	12158	10.0%
0.2	51554	42.5%
0.3	23699	19.5%
0.4	10062	8.3%
0.5	2352	1.9%
0.6	3716	3.1%
0.7	5506	4.5%
0.8	5450	4.5%
0.9	219	0.2%

Value	Count	Frequency (%)
3.9	24	< 0.1%
3.8	328	0.3%
3.7	319	0.3%
3.6	256	0.2%
3.5	86	0.1%
3.4	50	< 0.1%
3.3	35	< 0.1%
3.2	2	< 0.1%
3.1	6	< 0.1%
3	2	< 0.1%

FOG Index
Real number (ℝ)

High correlation

Distinct	1790
Distinct (%)	1.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	9.0744193

Minimum	0
Maximum	120.4
Zeros	30
Zeros (%)	< 0.1%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	0
5-th percentile	1.2
Q1	5.66
median	8.67
Q3	11.67
95-th percentile	18
Maximum	120.4
Range	120.4
Interquartile range (IQR)	6.01

Descriptive statistics

Standard deviation	5.5720706
Coefficient of variation (CV)	0.61404156
Kurtosis	8.8098758
Mean	9.0744193
Median Absolute Deviation (MAD)	3
Skewness	1.5650952
Sum	1101516.5
Variance	31.047971
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
8.04	3494	2.9%
2	3451	2.8%
10	3445	2.8%
1.6	3372	2.8%
2.4	2803	2.3%
1.2	2739	2.3%
0.8	2590	2.1%
11.6	2568	2.1%
9.07	2476	2.0%
8.2	2389	2.0%
Other values (1780)	92060	75.8%

Value	Count	Frequency (%)
0	30	< 0.1%
0.4	1218	1.0%
0.8	2590	2.1%
1	13	< 0.1%
1.2	2739	2.3%
1.32	5	< 0.1%
1.4	203	0.2%
1.48	10	< 0.1%
1.6	3372	2.8%
1.72	23	< 0.1%

Value	Count	Frequency (%)
120.4	1	< 0.1%
85.13	1	< 0.1%
80.4	9	< 0.1%
74.85	1	< 0.1%
61.6	1	< 0.1%
57.52	1	< 0.1%
54.66	1	< 0.1%
51.28	1	< 0.1%
44.66	1	< 0.1%
44.29	1	< 0.1%

Flesch Reading Ease
Real number (ℝ)

High correlation

Distinct	2259
Distinct (%)	1.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	67.182635

Minimum	-3093.59
Maximum	206.84
Zeros	0
Zeros (%)	0.0%
Negative	3071
Negative (%)	2.5%
Memory size	948.5 KiB

Quantile statistics

Minimum	-3093.59
5-th percentile	21.56
Q1	54.18
median	69.79
Q3	83.66
95-th percentile	114.12
Maximum	206.84
Range	3300.43
Interquartile range (IQR)	29.48

Descriptive statistics

Standard deviation	33.02487
Coefficient of variation (CV)	0.49156854
Kurtosis	853.39225
Mean	67.182635
Median Absolute Deviation (MAD)	14.58
Skewness	-12.798857
Sum	8155098.5
Variance	1090.642
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
83.32	1462	1.2%
75.88	1394	1.1%
66.4	1279	1.1%
92.8	1277	1.1%
50.5	1262	1.0%
81.29	1234	1.0%
90.77	1217	1.0%
68.77	1203	1.0%
100.24	1202	1.0%
73.85	1194	1.0%
Other values (2249)	108663	89.5%

Value	Count	Frequency (%)
-3093.59	1	< 0.1%
-1739.99	1	< 0.1%
-1147.79	1	< 0.1%
-978.59	4	< 0.1%
-893.99	1	< 0.1%
-809.39	2	< 0.1%
-724.79	3	< 0.1%
-640.19	2	< 0.1%
-555.59	4	< 0.1%
-470.99	3	< 0.1%

Value	Count	Frequency (%)
206.84	30	< 0.1%
121.22	746	0.6%
120.21	1150	0.9%
119.7	3	< 0.1%
119.19	1063	0.9%
118.89	1	< 0.1%
118.68	55	< 0.1%
118.48	1	< 0.1%
118.18	1051	0.9%
117.67	39	< 0.1%

depth
Real number (ℝ)

High correlation

Distinct	101186
Distinct (%)	83.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.49705832

Minimum	9.28 × 10^-18
Maximum	1
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	9.28 × 10^-18
5-th percentile	0.026645969
Q1	0.32915201
median	0.51381283
Q3	0.67263229
95-th percentile	0.85203868
Maximum	1
Range	1
Interquartile range (IQR)	0.34348028

Descriptive statistics

Standard deviation	0.23563444
Coefficient of variation (CV)	0.47405792
Kurtosis	-0.50783966
Mean	0.49705832
Median Absolute Deviation (MAD)	0.16873744
Skewness	-0.24016716
Sum	60336.418
Variance	0.055523587
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	2014	1.7%
1.2 × 10^-17	567	0.5%
2.02 × 10^-17	432	0.4%
0.245853661	404	0.3%
0.245894725	360	0.3%
1.19 × 10^-17	334	0.3%
0.239850563	184	0.2%
0.178786802	173	0.1%
9.28 × 10^-18	169	0.1%
0.195146973	161	0.1%
Other values (101176)	116589	96.0%

Value	Count	Frequency (%)
9.28 × 10^-18	169	0.1%
9.64 × 10^-18	1	< 0.1%
9.66 × 10^-18	46	< 0.1%
9.69 × 10^-18	17	< 0.1%
9.8 × 10^-18	120	0.1%
9.82 × 10^-18	36	< 0.1%
1.03 × 10^-17	149	0.1%
1.08 × 10^-17	9	< 0.1%
1.09 × 10^-17	2	< 0.1%
1.12 × 10^-17	53	< 0.1%

Value	Count	Frequency (%)
1	2014	1.7%
0.98548975	1	< 0.1%
0.978472438	1	< 0.1%
0.976354583	1	< 0.1%
0.975911527	1	< 0.1%
0.975716215	1	< 0.1%
0.974601953	1	< 0.1%
0.973759302	1	< 0.1%
0.972450951	1	< 0.1%
0.972182366	1	< 0.1%

breadth
Real number (ℝ)

High correlation

Distinct	101765
Distinct (%)	83.8%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.66967431

Minimum	0.045493357
Maximum	1.6496107
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	0.045493357
5-th percentile	0.21839501
Q1	0.45677639
median	0.64806394
Q3	0.85804621
95-th percentile	1.2105752
Maximum	1.6496107
Range	1.6041173
Interquartile range (IQR)	0.40126982

Descriptive statistics

Standard deviation	0.29997378
Coefficient of variation (CV)	0.44793981
Kurtosis	0.0028850438
Mean	0.66967431
Median Absolute Deviation (MAD)	0.19958818
Skewness	0.40909187
Sum	81289.755
Variance	0.089984269
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0.045493357	2014	1.7%
1.076657762	581	0.5%
1.066136648	469	0.4%
0.858442265	404	0.3%
0.872999175	360	0.3%
1.093095606	339	0.3%
1.26598647	207	0.2%
1.2310041	184	0.2%
1.321873164	173	0.1%
1.532818084	172	0.1%
Other values (101755)	116484	96.0%

Value	Count	Frequency (%)
0.045493357	2014	1.7%
0.049614877	1	< 0.1%
0.055886761	1	< 0.1%
0.061306332	1	< 0.1%
0.0627203	1	< 0.1%
0.063906686	1	< 0.1%
0.06424804	1	< 0.1%
0.067131507	1	< 0.1%
0.067356517	1	< 0.1%
0.068989897	1	< 0.1%

Value	Count	Frequency (%)
1.649610684	129	0.1%
1.649213281	1	< 0.1%
1.648314745	1	< 0.1%
1.648212635	2	< 0.1%
1.645404283	1	< 0.1%
1.645222248	1	< 0.1%
1.642825624	1	< 0.1%
1.642720033	2	< 0.1%
1.641016631	1	< 0.1%
1.637482087	1	< 0.1%

valence
Real number (ℝ)

High correlation

Distinct	3676
Distinct (%)	3.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	4.2822403

Minimum	1.015
Maximum	4.989
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	948.5 KiB

Quantile statistics

Minimum	1.015
5-th percentile	2.731
Q1	4.112
median	4.508
Q3	4.727
95-th percentile	4.885
Maximum	4.989
Range	3.974
Interquartile range (IQR)	0.615

Descriptive statistics

Standard deviation	0.67229
Coefficient of variation (CV)	0.15699493
Kurtosis	3.5839261
Mean	4.2822403
Median Absolute Deviation (MAD)	0.265
Skewness	-1.9021409
Sum	519808.3
Variance	0.45197384
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
4.782	196	0.2%
4.74	190	0.2%
4.758	189	0.2%
4.771	189	0.2%
4.786	188	0.2%
4.75	188	0.2%
4.812	187	0.2%
4.628	186	0.2%
4.776	185	0.2%
4.753	182	0.1%
Other values (3666)	119507	98.5%

Value	Count	Frequency (%)
1.015	2	< 0.1%
1.03	1	< 0.1%
1.034	1	< 0.1%
1.036	1	< 0.1%
1.039	1	< 0.1%
1.049	1	< 0.1%
1.052	1	< 0.1%
1.053	1	< 0.1%
1.06	1	< 0.1%
1.061	1	< 0.1%

Value	Count	Frequency (%)
4.989	3	< 0.1%
4.988	5	< 0.1%
4.987	1	< 0.1%
4.986	1	< 0.1%
4.985	2	< 0.1%
4.984	1	< 0.1%
4.983	1	< 0.1%
4.982	3	< 0.1%
4.981	3	< 0.1%
4.98	2	< 0.1%

sentiment_score_discrete
Categorical

High correlation

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	948.5 KiB

5	76213
4	31684
3	8812
2	3300
1	1378

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	121387
Distinct characters	5
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	4
2nd row	4
3rd row	5
4th row	5
5th row	5

Common Values

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

Most occurring characters

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	121387	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
5	76213	62.8%
4	31684	26.1%
3	8812	7.3%
2	3300	2.7%
1	1378	1.1%

arousal
Real number (ℝ)

Distinct	121329
Distinct (%)	> 99.9%
Missing	1
Missing (%)	< 0.1%
Infinite	0
Infinite (%)	0.0%
Mean	0.029310592

Minimum	-0.58547016
Maximum	0.61454505
Zeros	0
Zeros (%)	0.0%
Negative	39739
Negative (%)	32.7%
Memory size	948.5 KiB

Quantile statistics

Minimum	-0.58547016
5-th percentile	-0.48059656
Q1	-0.046052439
median	0.080451352
Q3	0.13862692
95-th percentile	0.35535659
Maximum	0.61454505
Range	1.2000152
Interquartile range (IQR)	0.18467936

Descriptive statistics

Standard deviation	0.21419953
Coefficient of variation (CV)	7.3079222
Kurtosis	1.4013172
Mean	0.029310592
Median Absolute Deviation (MAD)	0.074388503
Skewness	-0.91226869
Sum	3557.8956
Variance	0.045881439
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-0.578376331	5	< 0.1%
0.148219408	4	< 0.1%
-0.580260381	3	< 0.1%
-0.577658097	3	< 0.1%
0.126367412	3	< 0.1%
0.148596488	2	< 0.1%
0.11888753	2	< 0.1%
-0.577999896	2	< 0.1%
0.153124454	2	< 0.1%
-0.537838739	2	< 0.1%
Other values (121319)	121358	> 99.9%

Value	Count	Frequency (%)
-0.58547016	1	< 0.1%
-0.585426161	1	< 0.1%
-0.58532197	1	< 0.1%
-0.585295935	1	< 0.1%
-0.584794675	1	< 0.1%
-0.584300215	1	< 0.1%
-0.58413353	1	< 0.1%
-0.584031357	1	< 0.1%
-0.583921868	1	< 0.1%
-0.583864011	1	< 0.1%

Value	Count	Frequency (%)
0.614545049	1	< 0.1%
0.612567026	1	< 0.1%
0.610007374	1	< 0.1%
0.609742338	1	< 0.1%
0.607369539	1	< 0.1%
0.607229081	1	< 0.1%
0.606565651	1	< 0.1%
0.606281555	1	< 0.1%
0.605757399	1	< 0.1%
0.60545536	1	< 0.1%

	Deviation of star ratings	FOG Index	Flesch Reading Ease	Rating	arousal	avg_rating	breadth	depth	helpfulness	num_of_enrolled	num_of_ratings	num_of_reviews	num_of_top_instructor_courses	num_of_top_instructor_leaners	sentiment_score_discrete	text_length	time_lapsed	valence
Deviation of star ratings	1.000	0.033	-0.011	0.942	-0.145	-0.795	-0.137	0.076	0.180	-0.473	-0.535	-0.512	-0.313	-0.409	0.382	0.030	-0.028	-0.388
FOG Index	0.033	1.000	-0.763	0.014	-0.059	-0.013	-0.222	0.199	0.066	-0.021	-0.024	-0.030	-0.042	-0.056	0.040	0.295	0.006	-0.020
Flesch Reading Ease	-0.011	-0.763	1.000	0.000	0.021	0.015	0.146	-0.175	-0.038	0.046	0.044	0.050	0.025	0.051	0.035	-0.090	0.025	-0.036
Rating	0.942	0.014	0.000	1.000	0.104	0.133	0.125	0.101	0.046	0.130	0.128	0.135	0.080	0.107	0.398	0.073	0.038	0.428
arousal	-0.145	-0.059	0.021	0.104	1.000	0.094	0.133	-0.097	-0.039	0.085	0.079	0.079	0.016	0.054	0.164	-0.003	0.057	0.281
avg_rating	-0.795	-0.013	0.015	0.133	0.094	1.000	0.056	-0.010	-0.131	0.501	0.587	0.551	0.384	0.484	0.102	0.028	0.010	0.196
breadth	-0.137	-0.222	0.146	0.125	0.133	0.056	1.000	-0.693	-0.124	0.037	0.038	0.053	0.068	0.082	0.171	-0.446	-0.036	0.267
depth	0.076	0.199	-0.175	0.101	-0.097	-0.010	-0.693	1.000	0.110	0.023	0.019	0.010	-0.020	-0.019	0.139	0.421	0.035	-0.168
helpfulness	0.180	0.066	-0.038	0.046	-0.039	-0.131	-0.124	0.110	1.000	-0.141	-0.160	-0.159	-0.078	-0.109	0.026	0.166	0.012	-0.129
num_of_enrolled	-0.473	-0.021	0.046	0.130	0.085	0.501	0.037	0.023	-0.141	1.000	0.939	0.945	0.384	0.651	0.097	0.100	0.114	0.178
num_of_ratings	-0.535	-0.024	0.044	0.128	0.079	0.587	0.038	0.019	-0.160	0.939	1.000	0.983	0.408	0.618	0.090	0.092	0.206	0.172
num_of_reviews	-0.512	-0.030	0.050	0.135	0.079	0.551	0.053	0.010	-0.159	0.945	0.983	1.000	0.376	0.592	0.098	0.074	0.185	0.174
num_of_top_instructor_courses	-0.313	-0.042	0.025	0.080	0.016	0.384	0.068	-0.020	-0.078	0.384	0.408	0.376	1.000	0.859	0.072	-0.065	-0.332	0.066
num_of_top_instructor_leaners	-0.409	-0.056	0.051	0.107	0.054	0.484	0.082	-0.019	-0.109	0.651	0.618	0.592	0.859	1.000	0.085	-0.039	-0.197	0.122
sentiment_score_discrete	0.382	0.040	0.035	0.398	0.164	0.102	0.171	0.139	0.026	0.097	0.090	0.098	0.072	0.085	1.000	0.063	0.041	0.780
text_length	0.030	0.295	-0.090	0.073	-0.003	0.028	-0.446	0.421	0.166	0.100	0.092	0.074	-0.065	-0.039	0.063	1.000	0.128	-0.079
time_lapsed	-0.028	0.006	0.025	0.038	0.057	0.010	-0.036	0.035	0.012	0.114	0.206	0.185	-0.332	-0.197	0.041	0.128	1.000	0.030
valence	-0.388	-0.020	-0.036	0.428	0.281	0.196	0.267	-0.168	-0.129	0.178	0.172	0.174	0.066	0.122	0.780	-0.079	0.030	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

The correlation heatmap measures nullity correlation: how strongly the presence or absence of one variable affects the presence of another.

	course_name	Rating	avg_rating	num_of_ratings	helpfulness	Review_Text	num_of_reviews	num_of_enrolled	num_of_top_instructor_courses	num_of_top_instructor_leaners	text_length	time_lapsed	Deviation of star ratings	FOG Index	Flesch Reading Ease	depth	breadth	valence	sentiment_score_discrete	arousal
0	foundations-of-cybersecurity	5	4.8	27905	54	The course is well paced and they get you comfortable with the topics even though we do not have any sort of prior exposure in this field. It is very good for the beginners who are new to this field	5510	988223	325	11153139	40	490	0.2	11.00	85.02	0.615755	0.699835	4.166	4	0.009651
1	foundations-of-cybersecurity	5	4.8	27905	44	Information was well organized, easy to learn, and study. with frequent note writing, and some breaks . You can learn a good brief summary of what's to come, and what to research more in the future.	5510	988223	325	11153139	36	559	0.2	8.11	84.98	0.522035	0.719817	3.880	4	-0.059593
2	foundations-of-cybersecurity	5	4.8	27905	41	For a foundation course, this one was easy to understand, it explained all basic concepts in a fluid way and built up the base for the upcoming courses. I'm eager to move on to the other courses now.	5510	988223	325	11153139	38	565	0.2	9.71	69.11	0.385761	0.481265	4.395	5	0.254931
3	foundations-of-cybersecurity	5	4.8	27905	32	I think this is a great start for anyone who is starting from absolute zero. I think that since I've been toying with the idea of getting into Cybersecurity for 2 years now, it was a great refresher!	5510	988223	325	11153139	38	326	0.2	10.76	69.11	0.412913	0.503966	4.603	5	0.111229
4	foundations-of-cybersecurity	5	4.8	27905	24	Surprised by the quality of this course. repeating items so you learn by seeing definitions and concepts over and over again while using great analogy to make difficult concept understandable.	5510	988223	325	11153139	30	561	0.2	14.00	56.25	0.675941	0.561266	4.575	5	0.543238
5	foundations-of-cybersecurity	5	4.8	27905	21	! Cybersecurity is a critical and multifaceted field that involves protecting computer systems, networks, and data from various digital threats. Here is a review of the foundations of cybersecurity	5510	988223	325	11153139	29	399	0.2	17.03	14.97	0.792327	0.505607	3.788	4	-0.526757
6	foundations-of-cybersecurity	1	4.8	27905	18	In the certificate , why am i not getting my name printed ? Instead "Coursera Learner"?	5510	988223	325	11153139	16	532	3.8	5.66	72.83	0.532769	0.474221	2.042	1	0.122483
7	foundations-of-cybersecurity	5	4.8	27905	9	Dear Instructors of the Foundations of Cybersecurity Course at Google,I wanted to take a moment to express my deepest gratitude for the incredible learning experience you provided throughout the course. Your expertise, dedication, and passion for cybersecurity have truly made a lasting impact on my journey in this field.Firstly, allow me to introduce myself. My name is Your Name, and I embarked on this course with a strong desire to deepen my understanding of cybersecurity and acquire the necessary skills to contribute meaningfully to the industry. As a lifelong learner, I am always seeking opportunities to expand my knowledge and stay updated with the latest developments in technology. This course seemed like the perfect fit to enhance my cybersecurity expertise.I chose to take this course because I firmly believe that cybersecurity is a critical aspect of our increasingly digital world. With the growing threats and vulnerabilities that organizations and individuals face, I wanted to equip myself with the knowledge and skills to make a tangible difference in securing digital systems and protecting sensitive information. The Foundations of Cybersecurity course seemed like the ideal starting point to build a strong foundation in this field.I am pleased to share that the course has exceeded my expectations in every way. From the very beginning, the course structure, content, and delivery were impeccable. The way you organized the modules and topics ensured a smooth learning journey, allowing me to grasp the fundamental concepts before diving into more advanced areas.What I truly loved about the course was the emphasis on practicality. The hands-on labs and simulations were invaluable in reinforcing the theoretical knowledge and providing a real-world perspective. Being able to apply the concepts in a practical setting not only enhanced my technical skills but also instilled confidence in my ability to tackle real-world cybersecurity challenges.Furthermore, the breadth of topics covered in the course was remarkable. From threat analysis to network security, encryption, incident response, and compliance, every aspect was explored in depth, providing a comprehensive understanding of the cybersecurity landscape. I appreciated the balance between theory and practical applications, as it allowed me to develop a holistic understanding of the subject matter.Your dedication as instructors was evident throughout the course. The quality of the course materials, including the informative videos, interactive quizzes, and additional readings, showcased the meticulous effort put into curating the content. Your ability to simplify complex concepts and communicate them effectively is commendable.The course has had a significant impact on my professional growth. Not only have I gained a solid understanding of cybersecurity fundamentals, but I have also acquired practical skills that I can immediately apply in real-world scenarios. The course has expanded my career prospects and opened doors to exciting opportunities in the cybersecurity field.I am truly grateful for the knowledge and insights I gained from this course. Your guidance and expertise have played a crucial role in shaping my cybersecurity journey. The impact you have made on my professional development is immeasurable.Thank you once again for your dedication, passion, and commitment to providing an exceptional learning experience. I am proud to have been a student in the Foundations of Cybersecurity course at Google, and I look forward to continuing my cybersecurity journey with the skills and knowledge I have acquired.With utmost appreciation,Jalal Saleem	5510	988223	325	11153139	544	539	0.2	13.64	27.72	0.886409	0.253521	4.556	5	0.095011
8	foundations-of-cybersecurity	3	4.8	27905	9	The questions on the quizzes were often meaningless and the multiple choice answers were unbelievably vague and ill-defined to the point where no answer was entirely correct.	5510	988223	325	11153139	27	560	1.8	16.73	44.07	0.856604	0.155322	1.800	2	0.059838
9	foundations-of-cybersecurity	5	4.8	27905	8	The instructors for the course did an amazing job at presenting all of the information to us! The course is informative and definitely will expand your knowledge specifically over Cybersecurity.	5510	988223	325	11153139	30	535	0.2	15.33	39.33	0.694900	0.584100	4.643	5	0.096451

	course_name	Rating	avg_rating	num_of_ratings	Review_Text	num_of_reviews	num_of_enrolled	num_of_top_instructor_courses	num_of_top_instructor_leaners	text_length	time_lapsed	Deviation of star ratings	FOG Index	Flesch Reading Ease	depth	breadth	valence	sentiment_score_discrete	arousal
121377	java-programming-arrays-lists-data	2	4.7	3168	Felt this was too vague for beginners, and too simple for those with experience. Spent a lot of time fighting with the quizzes to get it the answers it wanted, rather than focusing on writing good code.	515	160710	18	1071441	37	1602	2.7	10.64	78.08	6.984324e-01	0.638205	2.234	2	-0.393498
121378	java-programming-arrays-lists-data	2	4.7	3168	Please, focus on what you want the student to know from the course. You exaggerate a a lot explaining stuff.	515	160710	18	1071441	20	532	2.7	8.00	78.25	3.576219e-01	0.620167	3.206	3	-0.349344
121379	java-programming-arrays-lists-data	1	4.7	3168	Not really useful I would like to email in a PDF of my comments covering this course and the second course in this series	515	160710	18	1071441	24	3208	3.7	11.27	72.50	2.973635e-01	0.831676	1.953	2	-0.154776
121380	java-programming-arrays-lists-data	1	4.7	3168	A Very Hard course that you can't overcome it easily	515	160710	18	1071441	10	1502	3.7	8.00	86.71	3.030271e-01	0.546674	2.304	2	-0.130942
121381	java-programming-arrays-lists-data	1	4.7	3168	The course is very poorly designed for begineers	515	160710	18	1071441	8	1538	3.7	8.20	71.82	6.560000e-17	0.935336	1.845	2	0.057882
121382	introduction-to-applied-cryptography	5	4.6	66	This course by Professor Keith Martin is a fast-paced introduction to the basics of cryptography and six important classes of applications.Even though the course is aimed at beginners, it contains a lot of material (e.g., on mobile telephony) that will be of interest to advanced students as well.What I appreciated most about the course was the broad perspective and the relaxed manner in which serious knowledge was taught.	9	9693	2	83454	68	452	0.4	13.27	45.76	7.491413e-01	0.444210	3.971	4	0.037340
121383	introduction-to-applied-cryptography	5	4.6	66	Thank you so much during this 4 weeks, i gained more knowledges about cryptography in this course. This course really help me to learn in flexiblw time.	9	9693	2	83454	27	564	0.4	8.36	83.15	6.469838e-01	0.742023	4.825	5	-0.092934
121384	introduction-to-applied-cryptography	5	4.6	66	very useful and informative course.	9	9693	2	83454	5	564	0.4	10.00	49.48	3.512218e-01	1.115342	4.615	5	0.099697
121385	introduction-to-applied-cryptography	5	4.6	66	Challenging and very enratainent.	9	9693	2	83454	4	454	0.4	11.60	50.50	7.463779e-01	0.314778	4.490	5	-0.346199
121386	introduction-to-applied-cryptography	5	4.6	66	very good education.	9	9693	2	83454	3	389	0.4	14.53	34.59	1.772351e-02	1.058944	4.514	5	0.145036

Overview

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Interactions

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Sample